Wang Lin knew he wasn't a genius, at least compared to his junior brother Shi Hao, he was completely on a different level.
It's like this time when Chen Zhixing explained the Nirvana Tao to the two brothers, phrases like 'seek the Great Tao,' 'there are people within the Tao,' 'beware of Celestial Punishment,' 'do not overly rely on the Power of the Great Tao,' 'what is suitable for you is sometimes not the best,' he could individually understand them without issue, but when these are combined and integrated into one thing, Wang Lin could only say he had a partial understanding.
To sum it up, Master was saying that the Nirvana Realm allows for blood rebirth, but don't overly depend on this ability, because the reason the Nirvana Realm can achieve blood rebirth is that part of their existence is attached to the Great Tao, and within the Great Tao they are attached to, there may be 'people,' so Master wants them to be cautious of those 'people within the Tao.'
Did you understand?
